Box sealing machine capable of automatically detecting adhesive tape

Abstract

A box sealing machine includes a bed, a conveying platform on the bed for conveying goods, a supporting member joined to the bed and adjustable in height, a tape applying mechanism fitted on the supporting member, and a response detecting device; the tape applying mechanism includes a tape stand, a tape roll supported on the tape stand, a cutter for severing the tape, and several supporting rollers, over which a free section of the tape roll is passed; one of the supporting rollers has a responding element fitted thereon; the response detecting device is used for sensing the responding element to monitor rotation of the supporting rollers such that warning signals will be sent out if abnormal conditions are detected when the tape is being applied onto openings of goods.

1 . A box sealing machine capable of automatically detecting adhesive tape, comprising 
 a bed;    a conveying platform on the bed for conveying goods;    a supporting member joined to the bed and adjustable in height;    a tape applying mechanism fitted on the supporting member; the tape applying mechanism including a tape stand, a tape roll supported on the tape stand, a cutter for severing the tape, and a plurality of supporting rollers, over which a free section of the tape roll is passed; at least one of the supporting rollers having a responding element fitted thereon; and    a response detecting device for sensing the responding element to monitor rotation of the supporting rollers, thus calculating number of circles the supporting rollers are turned when a section of tape is being fed from the tape roll and causing the supporting rollers to turn.    
   
   
       2 . The box sealing machine capable of automatically detecting adhesive tape as claimed in  claim 1 , wherein the supporting member includes: 
 a lifting device securely joined to the bed at one end;    an up and down movable unit joined to other end of the lifting device; and    an inverted U shaped unit, which has a substantially inverted U shaped section; the U shaped unit being fitted on the up and down movable unit; the inverted U shaped unit having plural co-turning threaded rods fitted thereto; the two co-turning threaded rods being capable of being turned to move the inverted U shaped- unit relative to the up and down movable unit;    the conveying platform having front and rear detecting devices at front and rear ends thereof for sensing goods when goods are passed into and out of it;    the tape applying mechanism being equipped with a sensing switch at one end for finding out height of goods; the sensing switch detecting height of goods when the goods are passed by and sensed with the front detecting device, thus allowing the up and down movable unit to stop at such a height as to allow a tape to be applied onto the goods.    
   
   
       3 . The box sealing machine capable of automatically detecting adhesive tape as claimed in  claim 2 , wherein the front and the rear detecting devices are respectively positioned on inverted U shaped rails so as to be movable forwards and rearwards and adjustable in position.  
   
   
       4 . The box sealing machine capable of automatically detecting adhesive tape as claimed in  claim 2 , wherein the co-turning threaded rods are fitted to two lateral sides of the inverted U shaped unit, and a manual height adjusting wheel is joined to an upper end of a first one of the two co-turning threaded rods, and a height meter is joined to a lower side of the manual height adjusting wheel for showing height of the inverted U shaped unit; rotation of the first co-turning threaded rods being going to cause other ones of the co-turning threaded rods to turn.  
   
   
       5 . The box sealing machine capable of automatically detecting adhesive tape as claimed in  claim 2 , wherein the lifting device is telescopic and actuated by means of pneumatic pressure.  
   
   
       6 . The box sealing machine capable of automatically detecting adhesive tape as claimed in  claim 2 , wherein the lifting device is telescopic, and actuated by means of oil hydraulic pressure.  
   
   
       7 . The box sealing machine capable of automatically detecting adhesive tape as claimed in  claim 2 , wherein the lifting device includes racks and gear set engaging the racks.  
   
   
       8 . The box sealing machine capable of automatically detecting adhesive tape as claimed in  claim 2 , wherein the lifting device includes chains and transmission gears engaging the chains.  
   
   
       9 . The box sealing machine capable of automatically detecting adhesive tape as claimed in  claim 1 , wherein a sensor is fitted on a lateral side of the tape stand for detecting amount of those portions of the tape roll that have not yet been used; alerting signals being going to be sent out when amount of spare portions of the tape roll drops to a predetermined value.  
   
   
       10 . The box sealing machine capable of automatically detecting adhesive tape as claimed in  claim 1 , wherein the responding element includes a plurality of plate parts, which are circumferentially spaced around and joined to the first supporting roller.  
   
   
       11 . The box sealing machine capable of automatically detecting adhesive tape as claimed in  claim 1 , wherein the bed has a conveying belt assembly fitted thereto, which includes two opposed seat parts, a plurality of rolling wheels fitted to each of the seat parts, and a conveying belt passed around the rolling wheels of each conveying seat; the seat parts being capable of being moved to adjust width of a space between them to suit goods to be conveyed; the conveying belt assembly being equipped with plural sleeves on a lower side, which are joined to the seat parts, and which are each joined to a threaded rod, such that width of the space between the seat parts can be adjusted by means of turning the threaded rod; a width meter being fitted to one end of the threaded rod for showing width of the space between the seat parts; a manual adjusting wheel being fitted to said end of the threaded rod for manually turning the threaded rod.  
   
   
       12 . The box sealing machine capable of automatically detecting adhesive tape as claimed in  claim 1 , wherein the bed has a switch fitted thereto, which is used for turning on/off the telescopic lifting device of the supporting member; the tape applying mechanism will function completely automatically when the telescopic lifting device is turned on; the tape applying mechanism will function semi-automatically when the telescopic lifting device is turned off.  
   
   
       13 . A box sealing machine capable of automatically detecting adhesive tape, comprising 
 a bed;    a conveying platform on the bed for conveying goods;    a supporting member joined to the bed and adjustable in height;    a tape applying mechanism fitted on the supporting member; the tape applying mechanism including a tape stand, a tape roll supported on the tape stand, a cutter for severing the tape, and a plurality of supporting rollers, over which a free section of the tape roll is passed; at least one of the supporting rollers having a responding element fitted thereon; the tape stand having a sensor fitted on a lateral side thereof for detecting amount of those portions of the tape roll that have not yet been used; alerting signals being going to be sent out when amount of spare portions of the tape roll drops to a predetermined value;    a response detecting device for sensing the responding element to monitor rotation of the supporting rollers, thus calculating number of circles the supporting rollers are turned when a section of tape is being fed from the tape roll and causing the supporting rollers to turn; the responding element includes a plurality of plate parts, which are circumferentially spaced around and joined to the first supporting roller;    the supporting member including a lifting device securely joined to the bed at one end, an up and down movable unit joined to other end of the lifting device, and an inverted U shaped unit having a substantially inverted U shaped section; the inverted U shaped unit being fitted on the up and down movable unit; the inverted U shaped unit having plural co-turning threaded rods fitted thereto; the co-turning threaded rods being capable of being turned for moving the inverted U shaped unit relative to the up and down movable unit;    the conveying platform having front and rear detecting devices at front and rear ends thereof for sensing goods when goods are passed into and out of it;    the tape applying mechanism being equipped with a sensing switch at one end for finding out height of goods; the sensing switch detecting height of goods when the goods are passed by and sensed with the front detecting device, thus allowing the up and down movable unit to stop at such a height as to allow a tape to be applied onto the goods;    the bed having a switch fitted thereto for turning on/off the telescopic lifting device of the supporting member; the tape applying mechanism will function completely automatically when the telescopic lifting device is turned on; the tape applying mechanism will function semi-automatically when the telescopic lifting device is turned off.    
   
   
       14 . The box sealing machine capable of automatically detecting adhesive tape as claimed in  claim 13 , wherein the front and the rear detecting devices are respectively positioned on inverted U shaped rails so as to be movable forwards and rearwards and adjustable in position.  
   
   
       15 . The box sealing machine capable of automatically detecting adhesive tape as claimed in  claim 13 , wherein the co-turning threaded rods are fitted to two lateral sides of the inverted U shaped unit, and a manual height adjusting wheel is joined to an upper end of a first one of the two co-turning threaded rods, and a height meter is joined to a lower side of the manual height adjusting wheel for showing height of the inverted U shaped unit; rotation of the first co-turning threaded rods being going to cause rotation of other co-turning threaded rods.  
   
   
       16 . The box sealing machine capable of automatically detecting adhesive tape as claimed in  claim 13 , wherein the bed has a conveying belt assembly fitted thereto, which includes two opposed seat parts, a plurality of rolling wheels fitted to each of the seat parts, and a conveying belt passed around the rolling wheels of each conveying seat; the seat parts being capable of being moved to adjust width of a space between them to suit goods to be conveyed; the conveying belt assembly being equipped with plural sleeves on a lower side, which are joined to the seat parts, and which are each joined to a threaded rod, such that width of the space between the seat parts can be adjusted by means of turning the threaded rod; a width meter being fitted to one end of the threaded rod for showing width of the space between the seat parts; a manual adjusting wheel being fitted to said end of the threaded rod for manually turning the threaded rod.  
   
   
       17 . The box sealing machine capable of automatically detecting adhesive tape as claimed in  claim 13 , wherein the lifting device is telescopic and actuated by means of pneumatic pressure.  
   
   
       18 . The box sealing machine capable of automatically detecting adhesive tape as claimed in  claim 13 , wherein the lifting device is telescopic, and actuated by means of oil hydraulic pressure.  
   
   
       19 . The box sealing machine capable of automatically detecting adhesive tape as claimed in  claim 13 , wherein the lifting device includes racks and gear set engaging the racks.  
   
   
       20 . The box sealing machine capable of automatically detecting adhesive tape as claimed in  claim 13 , wherein the lifting device includes chains and transmission gears engaging the chains.